LIST OF ILLUSTRATIONS xix. 



FIG. 262. Head of male and female Anopheles. (After Giles.) 



263. Head of male and female Culex. (After Giles). 



264. Mouth-parts of A. claviger. (After Grassi.) 



265. Anopheles maculipennis . (After Nuttall and Shipley.) 



266. Longitudinal section of an A nopheles. (After Grassi.) 



267. Anopheles maculipennis, Meigen. (After Grassi.) 



268. Larva of A. maculipennis, Fabr. (After Grassi.) 



269. Larva of Culex. (After Grassi.) 



270. Pupa of A. maculipennis^ Meig. (After Grassi.) 



271. Neuration of wing. (Theobald.) 



272. Heads of Culex and Anopheles. (After Daniels.) 



273. Eggs of various mosquitoes. 



274. Diagram of structure of typical mosquito. (Theobald.) 



275. Types of scales; head and scutellar ornamentation ; forms of clypeus. (Theobald.) 



276. Wing of Anopheles maculipennis^ Meigen. 



277. Wing of a Culex. 



278. Wing of Simulium. 



279. Wing of Chironomus. 



280. A Ceratopogon or Midge. 



281. An owl midge (Phleboiomus, sp.). (Giles.) 



282. Larva of Ant homy ia canicularis. 



283. Larvae of Mtisea vomitaria. 



284. Larva of Lucilia macellaria. 



285. The Screw-worm fly (Compsomyia macellaria}. (After Conel.) 



286. Green bottle-fly (Lucilia ccesar, Linn.) 



287. Larva of Ochromyia. (After Blanchard.) 



288. Larva of Dermatobia cyaniventris. (After Blanchard.) 



289. Larva of Dermatobia cyaniventris. (After Blanchard.) 



290. Dermatobia noxialis, Goudot. 



291. Ox gad-fly (Tabanus bovinus. Linn.). 



292. The Brimp (Hamatopota pluvialis. Linn.). 



293. Stinging fly (Stomoxys calcitram, Linn.). 



294. Tsetse-fly (Glossina morsitans} (West wood). 



